/*
* Copyright (c) 2025 Huawei Device Co., Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including but not limited to the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to provide persons with access to the Software
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGE OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/

import { BreakpointManager } from '../../hooks/breakpoint';
import { defaultConfig } from './default';

/**
 * @description 基于web components实现网格组件子标签
 */
export class GridItemComponent extends HTMLElement {
  private _property: string[];
  private _styleElement: HTMLStyleElement | null;
  private _unsubscribeBreakpoint: () => void;

  constructor() {
    super();
    this._styleElement = null;
    this._property = ['scope', 'name', 'grid-column-start', 'grid-column-end', 'grid-row-start', 'grid-row-end', 'label', 'icon'];
    const breakpoint = new BreakpointManager();
    this._unsubscribeBreakpoint = breakpoint.subscribeToBreakpoint(() => {
      this._attachStyles();
    })
  }

  connectedCallback(): void {
    this._attachStyles();
    this._render();
  }

  disconnectedCallback(): void {
    this._unsubscribeBreakpoint();
  }

  static get observedAttributes(): string[] {
    return ['scope', 'name', 'grid-column-start', 'grid-column-end', 'grid-row-start', 'grid-row-end', 'label', 'icon'];
  }

  attributeChangedCallback(name: string, oldValue: any, newValue: any): void {
    if (this._property.includes(name) && oldValue !== newValue) {
      this._attachStyles();
      this._render();
    }
  }

  private _attachStyles(): void {
    if (this._styleElement) {
      this._styleElement.remove();
    }

    const gridColumnStart = this.getAttribute('grid-column-start') || defaultConfig.item.gridColumnStart;
    const gridColumnEnd = this.getAttribute('grid-column-end') || defaultConfig.item.gridColumnEnd;
    const gridRowStart = this.getAttribute('grid-row-start') || defaultConfig.item.gridRowStart;
    const gridRowEnd = this.getAttribute('grid-row-end') || defaultConfig.item.gridRowEnd;
    const scopeId = this.getAttribute('scope') || '';
    const style = document.createElement('style') as HTMLStyleElement;
    style.textContent = `
      .${scopeId} {
        grid-column-start: ${gridColumnStart};
        grid-column-end: ${gridColumnEnd};
        grid-row-start: ${gridRowStart};
        grid-row-end: ${gridRowEnd};
      }
    `;

    this._styleElement = style;
    document.head.appendChild(style);
  }

  private _render() {
    const label = this.getAttribute('label') || '';
    const icon = this.getAttribute('icon') || '';
    if (label || icon) {
      this.innerHTML = `
        ${icon ? `<img src='${icon}'></img>` : ''}
        ${label ? `<div class='grid-text'>${label}</div>` : ''}
      `;
    }
  }
}

if (!customElements.get('grid-item')) {
  customElements.define('grid-item', GridItemComponent);
}